Losing media query matching after switching portrait-landscape-portrait

I don't have your device to test on, but I usually stick to simpler media queries.

Perhaps trying just max-width instead of device-width. I find that doing this coupled with percentage based layouts means I am not device-specific with my layouts.

@media (max-width: 600px) { ... }

Orientation media queries are a real pain to support... I would advise to stay away from them. I've got a really good set of media queries that I use. I just reverse engineered Zurb's Foundation media queries. See below...

// Small screens@media only screen { }/* Define mobile styles */@media only screen and (max-width: 40em) { }/* max-width 640px, mobile-only styles, use when QAing mobile issues */// Medium screens@media only screen and (min-width: 40.063em) { }/* min-width 641px, medium screens */@media only screen and (min-width: 40.063em) and (max-width: 64em) { }/* min-width 641px and max-width 1024px, use when QAing tablet-only issues */// Large screens@media only screen and (min-width: 64.063em) { }/* min-width 1025px, large screens */@media only screen and (min-width: 64.063em) and (max-width: 90em) { }/* min-width 1025px and max-width 1440px, use when QAing large screen-only issues */// XLarge screens@media only screen and (min-width: 90.063em) { }/* min-width 1441px, xlarge screens */@media only screen and (min-width: 90.063em) and (max-width: 120em) { }/* min-width 1441px and max-width 1920px, use when QAing xlarge screen-only issues */// XXLarge screens@media only screen and (min-width: 120.063em) { }/* min-width 1921px, xxlarge screens */

You should try

@media only screen and (max-device-width: 600px) { /* STYLES GO HERE */}/* styles apply only in portrait mode */@media only screen and (min-device-width: 601px) { /* STYLES GO HERE */}/* styles apply only in landscape mode */

If you need a style to work only in between the range of your device... Obs: write the orientation bit only if you want the styles to apply in one of the two.

@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : landscape) { /* STYLES GO HERE */}

Drop the other values you've declared, it's creating a conflict because of the height.